Frequently Asked Questions About International IH Cabover Heat & AC Parts
What model years and cab types are these heating and AC parts compatible with?
Our International IH Cabover heating and AC parts are designed for various COE (Cab Over Engine) models including the 9670, 9700, and older series from the 1970s through early 2000s. Most components fit both standard and extended cab configurations. Always check the specific part listing for exact year ranges, as fitment can vary between pre-1990 and post-1990 models due to dashboard and HVAC system redesigns.
Are these aftermarket or OEM replacement parts, and what's the quality difference?
We carry both genuine OEM International parts and high-quality aftermarket alternatives. OEM parts guarantee exact fit and original specifications, while our aftermarket options often provide comparable performance at a lower price point. Aftermarket heater cores and blower motors typically use upgraded materials like aluminum cores and sealed bearings that can outlast original equipment. Each product listing clearly indicates whether it's OEM or aftermarket.
How difficult is it to replace the heater core or evaporator in an IH Cabover?
Heater core replacement typically requires 3-5 hours and involves remoOEMg the lower dashboard panel and HVAC housing. The evaporator is more complex, requiring evacuation of the AC system and often removal of the entire HVAC box. Most experienced mechanics or skilled DIYers can handle heater cores, but evaporator replacement usually requires AC certification for proper refrigerant handling. We recommend having the factory service manual for your specific model year.
What are the most common failure points in IH Cabover HVAC systems?
The most frequent issues include leaking heater cores (look for coolant smell or wet passenger floor), worn blower motor resistors causing single-speed operation, and deteriorated foam door seals in the HVAC box causing poor temperature control. AC systems commonly suffer from compressor clutch failure and evaporator leaks. We stock all these high-wear components, and many customers report fixing multiple issues during one dashboard removal saves significant labor time.
Do you offer complete HVAC upgrade kits for older IH Cabovers without factory AC?
Yes, we carry retrofit AC kits specifically designed for IH Cabovers that came without factory air conditioning. These kits include compact under-dash evaporator units, mounting brackets, hoses, and wiring harnesses. Installation typically requires cutting one hole in the firewall for AC lines and mounting the evaporator unit below the existing heater. Most kits are compatible with modern R134a refrigerant and include detailed installation instructions specific to IH cab configurations.
